[sr-dev] [tracker] Comment added: rtpproxy_manage with "l" option returns wrong ports

sip-router bugtracker at sip-router.org
Fri Jul 18 08:33:09 CEST 2014


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The following task has a new comment added:

FS#451 - rtpproxy_manage with "l" option returns wrong ports
User who did this - Sebastian Damm (sdamm)

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My scenario is the following: I call from a phone directly connected to the internet to a phone behind NAT. In the original INVITE, I check the branch flag saved with the registration wether I have to call rtpproxy_manage() for this call. Now when a reINVITE comes from the NATed client, nat_uac_test will tell me whether I have to call rtpproxy_manage() this time, too. But when the reINVITE comes from the client directly connected, I have no chance of finding out, whether this call was forced through an RTP proxy before. This is why I need the lookup option, so I can call it every time, and the RTP proxy gives me a result only if there is already an existing session.
The other scenario is a call between two clients in open internet situation, where a rtpproxy_manage() call in reINVITE would lead to audio being forced through RTP proxy whereas it went directly between the two clients before.

Do I miss something?
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More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=451#comment1552

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